Like a Frog

A seven year old boy goes to the hospital with his grandmother to visit his grandfather.

When they arrive there he runs ahead of his granny and bursts into his grandpa's room.

"Grandpa, as soon as Grandma comes into the room, make a noise like a frog," he shouted.

"What for?" asked his grandpa.

"Grandma said that as soon as you croaked, we're going to Disneyland